2.2 LC telephone line card (optional)
Receiver has 8 slots to connect LC telephone line cards. LC line cards can monitor one
telephone line. Each telephone line card have memory to store up to 500 events or
caller ID. Caller ID function is built in, the caller telephone number is stored and can be
transmitted to monitoring computer. Line cards support two-way audio communication
also. Line cards are continuously monitored by CP . All line card troubles are displayed
immediately at LCD display, and transmitted to monitoring computer. The line card
monitors the connection with CP as well, if it detects trouble automatically switches to
standalone operation mode. In this case it continues event receiving, but stores them in
its own memory. All received events will be sent automatically to CP when the
connection is restored.
2.3 RC radio receiver card (optional)
The optional RC radio receiver card works as a special line card in the system – it
provides event receiving through UHF radio (440..450 Hz). RC card can handle two
independent radio channels, which are displayed as line card “A” and “B” in the system.
Event management and CP monitoring way is similar to LC line cards. In standalone
mode the RC card can store up to 500 events, which will be sent automatically to CP
when the connection is restored.
2.4 PWR power supply card
PWR power supply card ensures voltage for all cards in the system. The input of PWR
requires 16.5 VAC / 18 VDC, which is generated by an external transformer unit / power
supply unit. PWR has got battery charging circuit, batteries can be connected to
external connectors. In case of main power trouble battery powered operation is
switched automatically. The capacity of batteries should be between 7 Ah and 15 Ah.
The PWR continuously check the state of main power and batteries, and it reports the
status to CP unit.
2.5 IP card (optional)
Receiver has 8 slots to connect IP Ethernet based receiver cards. IP cards can work in
standalone mode, they control individually the incoming events through Ethernet line.
Then they forward events to central processing unit through internal receiver bus. IP
card gives extended range in IP receiving functions (comparing to CP ). Additionally it
provides possibility to connect the system to a secondary Internet provider.
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